| Unusual Luminescence of Ca8[Al12O24]（WO4）2： Tb^3＋ |
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| 引用本文： | 刘胜利,苏锵.Unusual Luminescence of Ca8[Al12O24]（WO4）2： Tb^3＋[J].中国化学,2004,22(5):437-440. |
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| 作者姓名： | 刘胜利 苏锵 |
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| 作者单位： | [1]SchoolofChemistryandChemicalEngineering,HunanUniversityofScienceandTechnology,Xiangtan,Hunan411201,China [2]KeyLaboratoryofRareEarthChemistryandPhysics,ChangchunInstituteofAppliedChemistry,ChineseAcademyofSciences,Changchun,Jilin130022,China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (No. 29771029). |
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| 摘 要： | The luminescence properties of aluminate sodalite Ca8Al12024](WO4)2 (CAW) undoped and doped with Th^3 are reported and discussed. At room temperature the emission of tetrahedral WO4^2- in CAW showed an abnormally small Stokes shift (9060 cm^-1), which is related to the crystal structure of CAW. A strong absorption band in the excitation spectrum of the Th^3 -activated CAW is ascribed to the absorption of the charge transfer state Th^4 -W^5 , into which the excitation resulted in the efficient emission from the ^5D4 level of Tb^3 , but not from the ^5D3 level.
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| 关 键 词： | 发光性质 铝酸盐方钠石 晶体结构 铋离子 电荷转移 钨酸盐 斯托克司频移 |
Unusual Luminescence of Ca_8[Al_(12)O_(24)](WO_4)_2: Tb~(3+) |
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| LIU,Sheng-Li,a SU,Qiangb a School of Chemistry and Chemical Engineering,Hunan University of Science and Technology,Xiangtan,Hunan ,China b Key Laboratory of Rare Earth Chemistry and Physics,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun,Jilin ,China.Unusual Luminescence of Ca_8[Al_(12)O_(24)](WO_4)_2: Tb~(3+)[J].Chinese Journal of Chemistry,2004,22(5):437-440. |
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| Authors: | LIU Sheng-Li a SU Qiangb a School of Chemistry and Chemical Engineering Hunan University of Science and Technology Xiangtan Hunan China b Key Laboratory of Rare Earth Chemistry and Physics Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun Jilin China |
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| Institution: | LIU,Sheng-Li*,a SU,Qiangb) a School of Chemistry and Chemical Engineering,Hunan University of Science and Technology,Xiangtan,Hunan 411201,China b Key Laboratory of Rare Earth Chemistry and Physics,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun,Jilin 130022,China |
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| Abstract: | The luminescence properties of aluminate sodalite Ca8Al12O24](WO4)2 (CAW) undoped and doped with Tb3+ are reported and discussed. At room temperature the emission of tetrahedral 2-4WO in CAW showed an abnor-mally small Stokes shift (9060 cm-1), which is related to the crystal structure of CAW. A strong absorption band in the excitation spectrum of the Tb3+-activated CAW is ascribed to the absorption of the charge transfer state Tb4+- W5+, into which the excitation resulted in the efficient emission from the 5D4 level of Tb3+, but not from the 5D3 level. |
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| Keywords: | aluminate sodalite terbium ion tungstate charge transfer Stokes shift luminescence |
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